You will need to apply for a work permit for Alexa. She is a preforming as a DJ and that will require a permit from Labor.
In addition, she will need a fairly invasive medical exam in the US before she leaves, the blood test upon arrival, a $1000 bond left with immigration, and 4 days upon arrival to complete paperwork. OH, and likely the printer won't be working so expect a few trips back to Labour to get the work permit card printed....
